AT&T 3B2/300 Product manual

NOTICE
The information in this document is subject to change without notice. AT&T assumes no responsibility for any errors that may
appear in this document.
Copyright© 1990
AT&T
All Rights Reserved
Printed in U.S.A.
~\
I
,)

C
-
TRADEMARKS
The following is a listing of the trademarks that are used in this manual:
• CENTRONICS -Registered trademark of Centronics Data Computer Corp.
•
Datakit -Registered trademark of AT&T
• FUJITSU -Registered
trademark of FUJITSU Limited, Nakahara-Ku, Kawasaki, Japan
• INTEL -Registered trademark of Intel Corp.
• MS-DOS -Registered
trademark of Microsoft Corp.
• Teletype -Registered
trademark of AT&T
• UNIX -Registered
trademark of AT&T
•
WE -Registered trademark of AT&T
• WREN -
Trademark of Control Data Corp.
ORDERING INFORMATION
Additional copies of this document can be ordered by calling
Toll free: 1-800-432-6600
In the U.S.A.
1-800-255-1242 In Canada
Toll: 1-317-352-8557 Worldwide
OR by writing to:
AT&T
Customer Information Center
Attn: Customer Service Representative
P.O. Box 19901
Indianapolis,
IN 46219

.. ·····--- ··----------------------
TRAINING INFORMATION
The AT&T Education and Training Catalogue of Courses and course schedules are free and can be ordered
by contacting your account executive or by calling toll free:
1-800-554-6400 (extension 7150)
Training information can also be accessed electronically through our computerized catalogue:
DIAL: 1-800-662-0662 or 1-614-764-5566
LOGIN: comcats
PASSWORD: 88cat

Table of Contents
1.
2.
INTRODUCTION
INTRODUCTION . . . . . . . . . . . . . . . .
PURPOSE OF TECHNICAL REFERENCE MANUAL
MANUAL ORGANIZATION .
RELATED DOCUMENTATION .
EQUIPMENT DESCRIPTION
EQUIPMENT DESCRIPTION . .
SYSTEM (EQUIPMENT) CONFIGURATIONS
HARDWARE OVERVIEW . . . . . .
SYSTEM BOARDS . . . . . . . . . . . . .
RANDOM ACCESS MEMORY CARDS . . .
BACKPLANE BOARDS . . . . . . . . . . .
AUXILIARY DISK INTERFACE (ED-4C632-30)
DUART CONNECTOR-2 INTERFACE (ED-4C492-35,G5
and ED-4C631-35,G2) ............. .
CM195A NETWORK INTERFACE CARD
..... .
CM195AA ALARM INTERFACE CIRCUIT CARD
..
CM195AC/CM195AD "DATAKIT" VCS INTERFACE
CARD
............ .
CM195AE GPSC CARD PACKAGE
CM195AY EPORTS CARD
........... .
CM195B PORTS CARD
............ .
CM195BA PORTS CARD
............ .
CM195H CARTRIDGE TAPE CONTROLLER CARD
CM195K EXPANSION DISK CONTROLLER CARD
CM195T INTELLIGENT SERIAL CONTROLLER
CARD
............... .
CM195U STARLAN INTERFACE CARD
CM195W SCSI HOST ADAPTER CARD . . . . .
CM195Y EPORTS CARD
........... .
CM521A DIFFERENTIAL SCSI HOST ADAPTER
CARD
................ .
CM522A VCACHE CARD . . . . . . . .
CM524A PROCESSING ELEMENT CARD .
CM525B VMEbus CARD . . . . . . . . .
1-1
1-1
1-1
1-1
1-1
2-1
2-1
2-3
2-13
2-99
2-119
2-131
2-137
2-139
2-141
2-143
2-145
2-147
2-149
2-151
2-155
2-157
2-159
2-161
2-163
2-165
2-167
2-169
2-171
2-173
2-175
TABLE OF CONTENTS

Table of Contents
CM527A MULTIPROCESSOR ENHANCEMENT
~
CARD.
2-177
,.._I
FLOPPY DISK DRIVE (KS-23114,L4) 2-179
23-MEGABYTE CARTRIDGE TAPE DRIVE
(KS-23165,Ll) 2-183
60-MEGABYTE CARTRIDGE TAPE DRIVE
(KS-234l 7,L2) 2-187
120-MEGABYTE CARTRIDGE TAPE DRIVE
(KS-23465,LlA) 2-189
HARD DISK DRIVES . 2-191
POWER-EQUIPMENT DESCRIPTION . 2-207
MISCELLANEOUS EQUIPMENT AND APPARATUS 2-221
3. FUNCTIONAL DESCRIPTION 3-1
FUNCTIONAL DESCRIPTION 3-1
SYSTEM OVERVIEW . 3-1
SYSTEM BOARDS 3-31
RANDOM ACCESS MEMORY CARDS 3-139
BACKPLANES . 3-153
CM195A NETWORK INTERFACE CARD 3-165
~
CM195AA ALARM INTERACE CIRCUIT CARD . 3-175
,._,
CM195AC/CM195AD "DATAKIT" VCS INTERFACE
CARD.
3-183
CM195AE GPSC CARD 3-189
CM195AY EPORTS CARD 3-197
CM195B/CM195BA PORTS CARD 3-203
CM195H CARTRIDGE TAPE CONTROLLER CARD 3-209
CM195K EXPANSION DISK CONTROLLER CARD 3-215
CM195T INTELLIGENT SERIAL CONTROLLER
CARD.
3-223
CM195U STARLAN INTERFACE CARD 3-231
CM195W SCSI HOST ADAPTER CARD . 3-239
CM195Y EPORTS CARD . 3-247
CM521A DIFFERENTIAL SCSI HOST ADAPTER CARD 3-253
CM522A VCACHE CARD 3-261
CM524A PROCESSING ELEMENT CARD . 3-265
CM525B VMEbus CARD 3-271
,.......,,
""-1111'
ii TECHNICAL REFERENCE MANUAL

C
---------------------Table of Contents
CM527A MULTIPROCESSOR ENHANCEMENT
CARD
................ .
FLOPPY DISK DRIVE . . . . . . . . . . . . .
23-MEGABYTE CARTRIDGE TAPE DRIVE . . .
60-MEGABYTE SCSI CARTRIDGE TAPE
DRIVE.
120-MEGABYTE SCSI CARTRIDGE TAPE DRIVE
AT&T SCSI REWRITABLE OPTICAL DISK DRIVE
HARD DISK DRIVES . . . . . . . . . .
POWER-FUNCTIONAL DESCRIPTION ...
Appendix A:
Appendix B:
Index
.....
VIRTUAL ADDRESS SP ACE
CONNECTOR AND CABLING
INFORMATION.
3-277
3-283
3-287
3-291
3-295
3-299
3-301
3-303
A-1
B-1
IN-1
TABLE OF CONTENTS iii

Table of Contents-----------------------------
iv TECHNICAL REFERENCE MANUAL

List of Figures
C Figure 2-1: Domestic
382/300 Computer Cabinet Assembly Drawing (ED-4C492-30) 2-15
Figure 2-2: International
382/300 Computer Cabinet Assembly Drawing
(ED-4C560-30) . 2-19
Figure 2-3: Domestic
382/310 Computer Cabinet Assembly Drawing (ED-4C645-30) 2-23
Figure 2-4: International
382/310 Computer Cabinet Assembly Drawing
(ED-4C646-30) . 2-27
Figure 2-5: Domestic
382/400 Computer Cabinet Assembly Drawing (ED-4C631-30) 2-31
Figure 2-6: International
382/400 Computer Cabinet Assembly Drawing
(ED-4C638-30) . 2-35
Figure 2-7:
382/500 Computer Cabinet Assembly Drawing (ED-3T043-30) 2-39
Figure 2-8:
382/600 Computer Cabinet Assembly Drawing (ED-3T023-30) 2-43
Figure 2-9:
382/700 Computer Cabinet Assembly Drawing (ED-3T047-30) 2-47
Figure 2-10:
382/1000 Computer Cabinet Assembly Drawing (ED-3T056-30) 2-51
Figure 2-11: Domestic AT&T/XM Cabinet Assembly
Drawing (ED-4C580-30) 2-55
Figure 2-12: International AT&T/XM Cabinet Assembly Drawing (ED-4C635-30) 2-59
Figure 2-13: Domestic AT&T
XM/405S/900S Cabinet Assembly Drawing
(ED-3
TO 10-30) 2-63
Figure 2-14: International AT&T
XM/405S/900S Cabinet Assembly Drawing
(ED-3T027-30) 2-67
Figure 2-15: AT&T
DCM/4E Cabinet Assembly Drawing (ED-3T011-30,Gl) 2-71
Figure 2-16: AT&T DM Cabinet Assembly Drawing (ED-3T011-30,G2, G3, GS, G6) 2-75
Figure 2-17: AT&T
DM/S or DM/DS Cabinet Assembly Drawing (ED-3T011-30,G8, G9,
Gll)
2-79
Figure 2-18: AT&T SCSI Rewritable Optical Disk Cabinet Assembly Drawing 2-83
Figure 2-19: SCSI Manual-Loading 9-Track Tape Cabinet 2-87
,-
Figure 2-20: SCSI Autoloading 9-Track Tape Cabinet 2-88
... .__..,
Figure 2-21: AT&T SCSI TM Cabinet Assembly Drawing (ED-3T011-30,G4, G7) 2-91
Figure 2-22: AT&T
PPCU Cabinet Assembly Drawing (ED-3T011-30,G10) 2-97
Figure 2-23: CM190A System Board Layout (Discontinued Availability) 2-101
Figure 2-24: System Board, ED-4C637-30 Layout 2-105
Figure 2-25: CM518A System Board Layout 2-109
Figure 2-26: CM518B System Board Layout 2-113
Figure 2-27: CM518C System Board Layout 2-117
Figure 2-28: CM191A 0.25-Megabyte RAM
Card Layout 2-121
Figure 2-29: CM191B
I-Megabyte RAM Card Layout 2-122
Figure 2-30: CM191C I-Megabyte, Surface Mounted, RAM
Card Layout 2-123
Figure 2-31: CM191D 2-Megabyte, Surface Mounted, RAM
Card Layout 2-124
Figure 2-32: CM192B 2-Megabyte RAM
Card Layout 2-125
Figure 2-33: CM523A 4-Megabyte, Surface Mounted, RAM
Card Layout 2-126
Figure 2-34: CM523AA 4-Megabyte, Surface Mounted, RAM
Card Layout 2-127
Figure 2-35: CM523B 2-Megabyte, Surface Mounted, RAM
Card Layout 2-128
Figure 2-36: CM523D 16-Megabyte, Surface Mounted, RAM
Card Layout 2-129
Figure 2-37:
CMl 93A/B Backplane Board Layout 2-131
Figure 2-38:
CMl 948 Backplane Board Layout 2-132
Figure 2-39: CM519A Backplane Board Layout 2-133
Figure 2-40: CMS198 Backplane Board Layout 2-134
Figure 2-41: CM520A Backplane Board Layout 2-135
Figure 2-42: Auxiliary Disk Interface, ED-4C632-30, Layout 2-138
Figure 2-43: DUART Connector-2 Interface, ED-4C492-30,GS
(382/300/310) and
ED-4C631-35,G2 (382/400) Layout 2-140
Figure 2-44:
CMl 95A NI Card Layout 2-142
,,-
Figure 2-45:
CMl 95AA AIC Layout 2-144
."-"
LIST OF FIGURES v

List of Figures
Figure 2-46:
CM195AC/CM195AD Datakit VCS Interface Card Layout 2-146
Figure 2-47: CMl 95AE GPSC Card Layout 2-148
~
Figure 2-48: CMl 95AY EPORTS Card Layout . 2-150
Figure 2-49:
CMl 95B PORTS Card Layout (Early Production) 2-152
Figure 2-50: CM195B-7 PORTS
Card Layout 2-153
Figure 2-51:
CMl 95BA PORTS Card Layout 2-156
Figure 2-52:
CM195H CTC Card Layout 2-158
Figure 2-53:
CMl 95K XDC Card Layout 2-160
Figure 2-54:
CMl 95T ISC Card Layout 2-162
Figure 2-55:
CMl 95U STARLAN Interface Card Layout 2-164
Figure 2-56: CM195W SCSI
Host Adapter Card Layout 2-166
Figure 2-57:
CMl 95Y EPORTS Card Layout 2-168
Figure 2-58: CM521A Differential SCSI
Host Adapter Card Layout 2-170
Figure 2-59: CM522A VCACHE
Card Layout 2-172
Figure 2-60: CM524A PE
Card Layout 2-174
Figure 2-61: CM525B VMEbus
Card Layout 2-176
Figure 2-62: CM527A MPE
Card Layout 2-178
Figure 2-63: Version 2
Computer Backup Battery Supply Layout 2-218
Figure 2-64:
3B2/500 Computer Backup Battery Supply Position 2-219
Figure 2-65:
3B2/600, 700, and 1000 Computer Backup Battery Supply Position 2-220
Figure 3-1: Version 2
Computer-High-Level Functional Block Diagram 3-3
Figure 3-2: Version 3
Computer-High-Level Functional Block Diagram
3-7
Figure 3-3: Version 2
Computer Address Spectrum 3-10
Figure 3-4: Version 3
Computer Address Spectrum 3-11
Figure 3-5:
Input/Output Bus Signals 3-14
Figure 3-6:
System Board Peripheral Controller Read Operation 3-18
Figure 3-7:
System Board Peripheral Controller Write Operation 3-20
~
Figure 3-8: Peripheral Controller Main Memory Read Operation 3-22
~
Figure 3-9: Peripheral Controller Main
Memory Write Operation 3-24
Figure 3-10: Self-Configuration-
Powerup Sequence 3-27
Figure 3-11: Self-Configuration-
Manual Boot Sequence 3-28
Figure 3-12: Self-Configuration Process 3-30
Figure 3-13: Version 2 3B2
Computer System Board-Functional Block Diagram 3-33
Figure 3-14:
System Board CPU-Functional Block Diagram 3-36
Figure 3-15: WE 32101 MMU Interconnection Diagram 3-44
Figure 3-16:
WE 32101 MMU Block Diagram 3-45
Figure 3-17: MMU Internal Address
Spectrum 3-51
Figure 3-18: Virtual Address to Physical Address Translation for Contiguous Segments 3-53
Figure 3-19: Virtual Address to Physical Address Translation for
Paged Segments 3-54
Figure 3-20:
WE 32106 Math Acceleration Unit-Functional Block Diagram 3-56
Figure 3-21:
Chip Select and Control Signals Address Decode 3-64
Figure 3-22: Version 2 System Board CSR Bit Assignments 3-68
Figure 3-23:
System Board Interrupt Assignments 3-70
Figure 3-24:
Dual Port Dynamic Random Access Memory Controller-Functional Block
Diagram 3-74
Figure 3-25:
Data Byte Selection Summary . 3-77
Figure 3-26: Direct
Memory Access Subsystem-Functional Block Diagram 3-79
Figure 3-27: Version 3 3B2
Computer System Board-Functional Block Diagram 3-87
Figure 3-28:
CM518B/C System Board CPU-Functional Block Diagram 3-90
Figure 3-29: WE 32201 MMU Interconnection Diagram 3-98
Figure 3-30:
MMU Internal Address Spectrum 3-104
Figure 3-31: Virtual Address to Physical Address Translation for
Paged Segments 3-106
Figure 3-32:
WE 32206 Math Acceleration Unit-Functional Block Diagram . 3-108
~
.....,,
vi TECHNICAL REFERENCE MANUAL